Restrict view to different Projects

Hello! I am a newbie with suiteCRM and it seems an extremely helpful platform to me!
I’ve looked for a solution to my question but haven’t found anything yet. Hope someone could help.

I’ve found how to create roles and assign them to users. It works fine. For example, I have a role that doesn’t have access to accounts (including all accounts).

However, I need to restrict access to specific projects. For example, I have Project A, Project B, Project C. I want everyone to see Project A but I want some of the users (Group B) to see Project B and some others (Group C) to see Project C. If John is a member of team B he will see in his list Project A and Project B, while Mary (member of group C) will see Project A and project C. Is this possible?

Thanks for your time.

Any suggestions?

I need to add different users to my projects and now allow them to view others projects. Thanks in advance.